The graph is based on the 90.41 percentile of PM10 daily mean concentration values corresponding to the 36th highest daily
mean for each Member State; the boxes present the range of concentrations at all stations types (in μg/m3) officially reported
by the EU Member States and how the concentrations relate to the limit value set by EU legislation (marked by the red line).
The diagram indicates the lowest and highest observations, the means and the lower and upper quartiles. The lower quartile
splits the lowest 25 % of the data and the upper quartile splits the highest 25 % of the data.
The graph is based on PM2.5 annual mean concentration values; they present the range of concentrations at all stations
types (in μg/m3) officially reported by the EU Member States and how the concentrations relate to the target value set by EU
legislation (marked by the red line).
The diagram indicates the lowest and highest observations, the means and the lower and upper quartiles. The lower quartile
splits the lowest 25 % of the data and the upper quartile splits the highest 25 % of the data.
The graph is based on the 93.15 percentile of maximum daily 8-hour mean concentration values corresponding to the
26th highest daily maximum of the running 8-h mean for each Member State; the boxes present the range of concentrations
at all stations types (in μg/m3) officially reported by the EU Member States and how the concentrations relate to the target
value set by EU legislation (marked by the red line).
The diagram indicates the lowest and highest observations, the means and the lower and upper quartiles. The lower quartile
splits the lowest 25 % of the data and the upper quartile splits the highest 25 % of the data.

The graphs are based on the annual mean concentration values; they present the range of concentrations at all station types (in μg/m3) officially reported by the EU Member States and how the concentrations relate to the target value set by EU legislation (marked by the red line).
The diagram indicates the lowest and highest observations, the means and the lower and upper quartiles. The lower quartile splits the lowest 25 % of the data and the upper quartile splits the highest 25 % of the data.

The graphs are based on the 90.4 percentile of daily mean concentration values corresponding to the 36th highest daily mean; they present the range of concentrations at all station types (in μg/m3) officially reported by the EU Member States and how the concentrations relate to the limit value set by EU legislation (marked by the red line).
The diagram indicates the lowest and highest observations, the means and the lower and upper quartiles. The lower quartile splits the lowest 25 % of the data and the upper quartile splits the highest 25 % of the data.

North-western Europe: United Kingdom, Ireland, the Netherlands, Belgium, Luxembourg and France north of 45 degrees latitude; Central and eastern Europe: Germany, Poland, the Czech Republic, Slovakia, Hungary, Austria and Switzerland; Southern Europe: France south of 45 degrees latitude, Portugal, Spain, Italy, Slovenia, Greece, Cyprus and Malta; Northern Europe has not been included in this figure because of the low number of exceedances.